Home / 133,247.03-183,875.40-72,819.68

Finding the Fourth Proportional to 133,247.03, 183,875.40 and 72,819.68

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Solution

The fourth proportional to 133,247.03, 183,875.40 and 72,819.68 is: 100,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,247.03 : 183,875.40 = 72,819.68 : x
  2. Step 2: Convert to fraction form
    133,247.03/183,875.40 = 72,819.68/x
  3. Step 3: Cross multiply
    133,247.03x = 183,875.40 × 72,819.68
  4. Step 4: Simplify right side
    133,247.03x = 13,389,747,787.87
  5. Step 5: Solve for x
    x = 13,389,747,787.87/133,247.03
  6. Step 6: Final answer
    x = 100,488.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.